Underground diaphragm wall grooving construction method

A technology of underground diaphragm wall and construction method, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of low hole-forming efficiency, slow construction, and poor hole-forming quality, and achieve high hole-forming efficiency and improved Accuracy and efficiency, the effect of strong applicability

Inactive Publication Date: 2018-04-27
中铁十局集团城市轨道交通工程有限公司
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Problems solved by technology

[0002] At present, percussion drills are mostly used for hole-forming construction of underground diaphragm walls, which not only has low hole-forming efficiency, but also for some complicated geological conditions, especially soft rock, not only the construction is slow, but also the quality of hole-forming is relatively low. Difference

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  • Underground diaphragm wall grooving construction method

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Embodiment Construction

[0028] In order to fully understand the technical content of the present invention, the technical solutions of the present invention will be further introduced and illustrated below in conjunction with specific examples, but not limited thereto.

[0029] see Figure 1-4 , the invention provides a construction method for forming grooves in an underground diaphragm wall, the construction method has a specific application at Maju Station of the Kunming Metro, and the method includes:

[0030] S10, dividing the ground to be excavated into a plurality of excavation slot sections according to the design specifications of the underground diaphragm wall, and marking a plurality of drilling positions to be drilled above each slot section;

[0031] S20, prepare the mud used when drilling;

[0032] S30. Move the rotary drilling rig to the excavation site, adjust the rotary drilling rig to the working state, and align the drill bit of the rotary drilling rig to the center of one of the d...

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Abstract

The invention discloses an underground diaphragm wall grooving construction method. The method comprises the following steps: dividing a to-be-excavated ground into a plurality of box cut sections according to a design specification of an underground diaphragm wall and marking a plurality of to-be-drilled drilling positions on each section; preparing mud used for drilling; moving a rotary drillingrig to the to-be-excavated ground and adjusting the rotary drilling rig to a working state, and aligning the drill of the rotary drilling rig to the center of one drilling position; starting the rotary drilling rig, wherein the drilling operation is carried out progressively in the drilling position and the progressive depth every time is 2-2.5m; and when the drilling operations in the first stage of all drilling positions of the section are finished by adopting a drilling selective method, grabbing residual earth and stones among the drill holes by using a hydraulic grab bucket to form a first groove body, and then entering the drilling operation in the next stage and so on till the designed depths of the drill holes are reached. The underground diaphragm wall grooving construction method disclosed by the invention improves the drilling efficiency and the drilling precision.

Description

technical field [0001] The invention relates to a construction method of an underground diaphragm wall, more specifically a construction method for forming grooves in an underground diaphragm wall. Background technique [0002] At present, percussion drills are mostly used for hole-forming construction of underground diaphragm walls, which not only has low hole-forming efficiency, but also for some complicated geological conditions, especially soft rock, not only the construction is slow, but also the quality of hole-forming is relatively low. Difference. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a construction method for forming grooves in an underground continuous wall. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: a construction method for forming grooves in an underground diaphragm wall, said method comprising: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/18
CPCE02D5/187
Inventor 王奎邵永王波魏泽文王长彪申浩吴先勇郭新平田军
Owner 中铁十局集团城市轨道交通工程有限公司
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